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Commit 1da80c50 authored by Hridya Valsaraju's avatar Hridya Valsaraju
Browse files

dumpstate: print DMA-BUF sysfs stats in bugreport 

Dump DMA-BUF per-buffer/per-exporter/per-device stats in bugreport.

These statistics will be helpful to analyze memory-related issues like Low
Memory Kills and ANR events.

Measured over 5 cycles, the addition of the statistics appear to
approximately increase the size of bugreport.zip by 26KB.

Bug: 167709539
Test: adb shell am bug-report
Change-Id: I2aceef79c4ec97ad400cb250c0075004fe50cdc6
parent 048f1e93

cmds/dumpstate/Android.bp

+1 −0
Original line number Diff line number Diff line
@@ -112,6 +112,7 @@ cc_binary { 
    ],

    required: [

        "atrace",

        "dmabuf_dump",

        "ip",

        "iptables",

        "librank",

cmds/dumpstate/dumpstate.cpp

+2 −4
Original line number Diff line number Diff line
@@ -1823,10 +1823,8 @@ Dumpstate::RunStatus Dumpstate::DumpstateDefaultAfterCritical() { 
    RunCommand("IOTOP", {"iotop", "-n", "1", "-m", "100"});



    // Gather shared memory buffer info if the product implements it

    struct stat st;

    if (!stat("/product/bin/dmabuf_dump", &st)) {

        RunCommand("Dmabuf dump", {"/product/bin/dmabuf_dump"});

    }

    RunCommand("Dmabuf dump", {"dmabuf_dump"});

    RunCommand("Dmabuf per-buffer/per-exporter/per-device stats", {"dmabuf_dump", "-b"});



    DumpFile("PSI cpu", "/proc/pressure/cpu");

    DumpFile("PSI memory", "/proc/pressure/memory");